Device Information for React Native.
- v2 to v3 Upgrade
- Installation
- Linking
- Usage
- API
- Troubleshooting
- Release Notes
- react-native-dom / react-native-web
If you are upgrading from v2 to v3, check the guide out: https://github.com/react-native-community/react-native-device-info/wiki/V2-to-V3-Migration-Guide
Using npm:
npm install --save react-native-device-info
or using yarn:
yarn add react-native-device-info
⚠️ If you are on React Native > 0.47, you must use version 0.11.0 of this library or higher
This module defaults to AndroidX you should configure your library versions similar to this in your android/build.gradle
file's "ext" block
Android
...
ext {
// dependency versions
googlePlayServicesIidVersion = "17.0.0" // default: "17.0.0" - AndroidX, use "16.0.1" for pre-AndroidX
compileSdkVersion = "28" // default: 28 (28 is required for AndroidX)
targetSdkVersion = "28" // default: 28 (28 is required for AndroidX)
supportLibVersion = '1.0.2' // Use '28.0.0' or don't specify for old libraries, '1.0.2' or similar for AndroidX
mediaCompatVersion = '1.0.1' // Do not specify if using old libraries, specify '1.0.1' or similar for androidx.media:media dependency
supportV4Version = '1.0.0' // Do not specify if using old libraries, specify '1.0.0' or similar for androidx.legacy:legacy-support-v4 dependency
}
...
If you need non-AndroidX you will need to use the jetifier package in reverse mode, documentation available with that package.
react-native link react-native-device-info
(or using rnpm
for versions of React Native < 0.27)
rnpm link react-native-device-info
For iOS users using Pods
You still need to run pod install
after running the above link command inside your IOS
folder.
iOS (via CocoaPods) RN <= 59
RN <= 59: Bug
mv ios/Podfile .
react-native link react-native-device-info
mv Podfile ios
Do not append pod 'RNDeviceInfo', :path => '../node_modules/react-native-device-info'
to the Podfile
iOS (via CocoaPods) RN >= 60
Add the following lines to your build targets in your Podfile
pod 'React', :path => '../node_modules/react-native'
# Explicitly include Yoga if you are using RN >= 0.42.0
pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'
pod 'RNDeviceInfo', :path => '../node_modules/react-native-device-info'
# React-Native is not great about React double-including from the Podfile
post_install do |installer|
installer.pods_project.targets.each do |target|
if target.name == "React"
target.remove_from_project
end
# It removes React & Yoga from the Pods project, as it is already included in the main project.
targets_to_ignore = %w(React yoga)
if targets_to_ignore.include? target.name
target.remove_from_project
end
end
end
Then run pod install
iOS (without CocoaPods)
In XCode, in the project navigator:
- Right click Libraries
- Add Files to [your project's name]
- Go to
node_modules/react-native-device-info/ios
- Add the file
RNDeviceInfo.xcodeproj
In XCode, in the project navigator, select your project.
- Add the
libRNDeviceInfo.a
from the deviceinfo project to your project's Build Phases ➜ Link Binary With Libraries - Click
.xcodeproj
file you added before in the project navigator and go the Build Settings tab. Make sure All is toggled on (instead of Basic). - Look for Header Search Paths and make sure it contains both
$(SRCROOT)/../react-native/React
and$(SRCROOT)/../../React
- Mark both as recursive (should be OK by default).
Run your project (Cmd+R)
(Thanks to @brysgo for writing the instructions)
Android
- optional in
android/build.gradle
:
...
ext {
// dependency versions
googlePlayServicesVersion = "<Your play services version>" // default: "16.1.0" - pre-AndroidX, override for AndroidX
compileSdkVersion = "<Your compile SDK version>" // default: 28
targetSdkVersion = "<Your target SDK version>" // default: 28
}
...
- in
android/app/build.gradle
:
dependencies {
...
implementation "com.facebook.react:react-native:+" // From node_modules
+ implementation project(':react-native-device-info')
}
- in
android/settings.gradle
:
...
include ':app'
+ include ':react-native-device-info'
+ project(':react-native-device-info').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-device-info/android')
- in
MainApplication.java
:
+ import com.learnium.RNDeviceInfo.RNDeviceInfo;
public class MainApplication extends Application implements ReactApplication {
//......
@Override
protected List<ReactPackage> getPackages() {
return Arrays.<ReactPackage>asList(
+ new RNDeviceInfo(),
new MainReactPackage()
);
}
......
}
- in
MainActivity.java
:
+ import com.learnium.RNDeviceInfo.RNDeviceInfo;
public class MainActivity extends ReactActivity {
......
@Override
protected List<ReactPackage> getPackages() {
return Arrays.<ReactPackage>asList(
+ new RNDeviceInfo(),
new MainReactPackage()
);
}
}
NOTE: If you faced with this error: Could not resolve all files for configuration ':react-native-device-info:debugCompileClasspath'.
, in build.gradle
put google()
in the first line (according to https://stackoverflow.com/a/50748249)
- in
android/build.gradle
:
allprojects {
repositories {
+ google()
...
}
}
(Thanks to @chirag04 for writing the instructions)
Windows
- Open the solution in Visual Studio for your Windows apps
- right click your in the Explorer and click Add > Existing Project...
- Navigate to
./<app-name>/node_modules/react-native-device-info/windows/RNDeviceInfo
and addRNDeviceInfo.csproj
- this time right click on your React Native Windows app under your solutions directory and click Add > Reference...
- check the
RNDeviceInfo
you just added and press ok - open up
MainReactNativeHost.cs
for your app and edit the file like so:
+ using RNDeviceInfo;
......
protected override List<IReactPackage> Packages => new List<IReactPackage>
{
new MainReactPackage(),
+ new RNDeviceInfoPackage(),
};
(Thanks to @josephan for writing the instructions)
import DeviceInfo from 'react-native-device-info';
// or ES6+ destructured imports
import { getUniqueId, getManufacturer } from 'react-native-device-info';
Note that many APIs are platform-specific. If there is no implementation for a platform, then the "default" return values you will receive are 'unknown' for string, '-1' for number, and 'false' for boolean. Arrays and Objects will be empty ('[]' and '{}' respectively).
Every API returns a Promise but also has a corresponding API with 'Sync' on the end that operates synchronously. For example, you may prefer to call 'isCameraPresentSync()' during your app bootstrap to avoid async calls during the first parts of app startup.
Method | Return Type | iOS | Android | Windows |
---|---|---|---|---|
getAndroidId() | Promise<string> |
❌ | ✅ | ❌ |
getApiLevel() | Promise<number> |
❌ | ✅ | ❌ |
getApplicationName() | Promise<string> |
✅ | ✅ | ✅ |
getAvailableLocationProviders() | Promise<Object> |
✅ | ✅ | ❌ |
getBaseOs() | Promise<string> |
❌ | ✅ | ❌ |
getBuildId() | Promise<string> |
✅ | ✅ | ❌ |
getBatteryLevel() | Promise<number> |
✅ | ✅ | ✅ |
getBootloader() | Promise<string> |
❌ | ✅ | ❌ |
getBrand() | Promise<string> |
✅ | ✅ | ✅ |
getBuildNumber() | Promise<string> |
✅ | ✅ | ✅ |
getBundleId() | Promise<string> |
✅ | ✅ | ✅ |
isCameraPresent() | Promise<boolean> |
❌ | ✅ | ✅ |
getCarrier() | Promise<string> |
✅ | ✅ | ❌ |
getCodename() | Promise<string> |
❌ | ✅ | ❌ |
getDevice() | Promise<string> |
❌ | ✅ | ❌ |
getDeviceId() | Promise<string> |
✅ | ✅ | ✅ |
getDeviceType() | Promise<string> |
✅ | ✅ | ❌ |
getDisplay() | Promise<string> |
❌ | ✅ | ❌ |
getDeviceName() | Promise<string> |
✅ | ✅ | ✅ |
getFirstInstallTime() | Promise<number> |
❌ | ✅ | ✅ |
getFingerprint() | Promise<string> |
❌ | ✅ | ❌ |
getFontScale() | Promise<number> |
✅ | ✅ | ❌ |
getFreeDiskStorage() | Promise<number> |
✅ | ✅ | ❌ |
getHardware() | Promise<string> |
❌ | ✅ | ❌ |
getHost() | Promise<string> |
❌ | ✅ | ❌ |
getIpAddress() | Promise<string> |
✅ | ✅ | ✅ |
getIncremental() | Promise<string> |
❌ | ✅ | ❌ |
getInstallReferrer() | Promise<string> |
❌ | ✅ | ❌ |
getInstanceId() | Promise<string> |
❌ | ✅ | ❌ |
getLastUpdateTime() | Promise<number> |
❌ | ✅ | ❌ |
getMacAddress() | Promise<string> |
✅ | ✅ | ❌ |
getManufacturer() | Promise<string> |
✅ | ✅ | ✅ |
getMaxMemory() | Promise<number> |
❌ | ✅ | ✅ |
getModel() | Promise<string> |
✅ | ✅ | ✅ |
getPhoneNumber() | Promise<string> |
❌ | ✅ | ❌ |
getPowerState() | Promise<object> |
✅ | ✅ | ❌ |
getProduct() | Promise<string> |
❌ | ✅ | ❌ |
getPreviewSdkInt() | Promise<number> |
❌ | ✅ | ❌ |
getReadableVersion() | Promise<string> |
✅ | ✅ | ✅ |
getSerialNumber() | Promise<string> |
❌ | ✅ | ❌ |
getSecurityPatch() | Promise<string> |
❌ | ✅ | ❌ |
getSystemAvailableFeatures() | Promise<string[]> |
❌ | ✅ | ❌ |
getSystemName() | Promise<string> |
✅ | ✅ | ✅ |
getSystemVersion() | Promise<string> |
✅ | ✅ | ✅ |
getTags() | Promise<string> |
❌ | ✅ | ❌ |
getType() | Promise<string> |
❌ | ✅ | ❌ |
getTotalDiskCapacity() | Promise<number> |
✅ | ✅ | ❌ |
getTotalMemory() | Promise<number> |
✅ | ✅ | ❌ |
getUniqueId() | Promise<string> |
✅ | ✅ | ✅ |
getUsedMemory() | Promise<number> |
✅ | ✅ | ❌ |
getUserAgent() | Promise<string> |
✅ | ✅ | ❌ |
getVersion() | Promise<string> |
✅ | ✅ | ✅ |
hasNotch() | Promise<boolean> |
✅ | ✅ | ✅ |
hasSystemFeature() | Promise<boolean> |
❌ | ✅ | ❌ |
isAirplaneMode() | Promise<boolean> |
❌ | ✅ | ❌ |
isBatteryCharging() | Promise<boolean> |
✅ | ✅ | ❌ |
isEmulator() | Promise<boolean> |
✅ | ✅ | ✅ |
isLandscape() | Promise<boolean> |
✅ | ✅ | ✅ |
isLocationEnabled() | Promise<boolean> |
✅ | ✅ | ❌ |
isPinOrFingerprintSet() | Promise<boolean> |
✅ | ✅ | ✅ |
isTablet() | Promise<boolean> |
✅ | ✅ | ✅ |
supported32BitAbis() | Promise<string[]> |
❌ | ✅ | ❌ |
supported64BitAbis() | Promise<string[]> |
❌ | ✅ | ❌ |
supportedAbis() | Promise<string[]> |
✅ | ✅ | ❌ |
Gets the API level.
DeviceInfo.getApiLevel().then(apiLevel => {
// iOS: ?
// Android: 25
// Windows: ?
});
See API Levels
Gets the ANDROID_ID. See API documentation for appropriate use.
DeviceInfo.getAndroidId().then(androidId => {
// androidId here
});
Gets the application name.
DeviceInfo.getApplicationName().then(appName => {
// AwesomeApp
});
The base OS build the product is based on.
DeviceInfo.getBaseOs().then(baseOs => {
// "Windows", "Android" etc
});
Gets the battery level of the device as a float comprised between 0 and 1.
DeviceInfo.getBatteryLevel().then(batteryLevel => {
// 0.759999
});
To be able to get actual battery level enable battery monitoring mode for application. Add this code:
[UIDevice currentDevice].batteryMonitoringEnabled = true;
to AppDelegate.m application:didFinishLaunchingWithOptions:
Returns -1 on the iOS Simulator
The system bootloader version number.
DeviceInfo.getBootloader().then(bootloader => {
// "mw8998-002.0069.00"
});
Gets the device brand.
DeviceInfo.getBrand().then(brand => {
// iOS: "Apple"
// Android: "xiaomi"
// Windows: ?
});
Gets the application build number.
DeviceInfo.getBuildNumber().then(buildNumber => {
// iOS: "89"
// Android: "4"
// Windows: ?
});
Gets the application bundle identifier.
DeviceInfo.getBundleId().then(bundleId => {
// "com.example.AwesomeApp"
});
Tells if the device have any camera now.
DeviceInfo.isCameraPresent()
.then(isCameraPresent => {
// true or false
})
.catch(cameraAccessException => {
// is thrown if a camera device could not be queried or opened by the CameraManager on Android
});
- Hot add/remove of camera is supported.
- Returns the status of the physical presence of the camera. If camera present but your app don't have permissions to use it, isCameraPresent will still return the true
Gets the carrier name (network operator).
DeviceInfo.getCarrier().then(carrier => {
// "SOFTBANK"
});
The current development codename, or the string "REL" if this is a release build.
DeviceInfo.getCodename().then(codename => {
// "REL"
});
The name of the industrial design.
DeviceInfo.getDevice().then(device => {
// "walleye"
});
Gets the device ID.
DeviceInfo.getDeviceId().then(deviceId => {
// iOS: "iPhone7,2"
// Android: "goldfish"
// Windows: ?
});
A build ID string meant for displaying to the user.
DeviceInfo.getDisplay().then(display => {
// "OPM2.171026.006.G1"
});
Gets the device name.
DeviceInfo.getDeviceName().then(deviceName => {
// iOS: "Becca's iPhone 6"
// Android: ?
// Windows: ?
});
This used to require the android.permission.BLUETOOTH but the new implementation in v3 does not need it. You may remove that from your AndroidManifest.xml if you had it for this API.
Gets the time at which the app was first installed, in milliseconds.
DeviceInfo.getFirstInstallTime().then(firstInstallTime => {
// Android: 1517681764528
});
A string that uniquely identifies this build.
DeviceInfo.getFingerprint().then(fingerprint => {
// "google/walleye/walleye:8.1.0/OPM2.171026.006.G1/4820017:user/release-keys"
});
Gets the device font scale. The font scale is the ratio of the current system font to the "normal" font size, so if normal text is 10pt and the system font is currently 15pt, the font scale would be 1.5 This can be used to determine if accessability settings has been changed for the device; you may want to re-layout certain views if the font scale is significantly larger ( > 2.0 )
In iOS App Extensions this call always returns 1.0, see #625.
DeviceInfo.getFontScale().then(fontScale => {
// 1.2
});
Gets available storage size, in bytes.
DeviceInfo.getFreeDiskStorage().then(freeDiskStorage => {
// Android: 17179869184
// iOS: 17179869184
});
From developer.android.com:
Return the primary shared/external storage directory.
Note: don't be confused by the word "external" here. This directory can better be thought as media/shared storage. It is a filesystem that can hold a relatively large amount of data and that is shared across all applications (does not enforce permissions). Traditionally this is an SD card, but it may also be implemented as built-in storage in a device that is distinct from the protected internal storage and can be mounted as a filesystem on a computer.
The name of the hardware (from the kernel command line or /proc).
DeviceInfo.getHardware().then(hardware => {
// "walleye"
};
Hostname
DeviceInfo.getHost().then(host => {
// "wprd10.hot.corp.google.com"
});
Deprecated Gets the device current IP address. (of wifi only) Switch to @react-native-community/netinfo or react-native-network-info
DeviceInfo.getIpAddress().then(ip => {
// "92.168.32.44"
});
Support for iOS was added in 0.22.0
The internal value used by the underlying source control to represent this build.
DeviceInfo.getIncremental().then(incremental => {
// "4820017"
});
Gets the referrer string upon application installation.
DeviceInfo.getInstallReferrer().then(installReferrer => {
// If the app was installed from https://play.google.com/store/apps/details?id=com.myapp&referrer=my_install_referrer
// the result will be "my_install_referrer"
});
Gets the application instance ID.
DeviceInfo.getInstanceId().then(instanceId => {
// Android: ?
});
Gets the time at which the app was last updated, in milliseconds.
DeviceInfo.getLastUpdateTime().then(lastUpdateTime => {
// Android: 1517681764992
});
Gets the network adapter MAC address.
DeviceInfo.getMacAddress().then(mac => {
// "E5:12:D8:E5:69:97"
});
iOS: This method always return "02:00:00:00:00:00" as retrieving the MAC address is disabled since iOS 7
Gets the device manufacturer.
DeviceInfo.getManufacturer().then(manufacturer => {
// iOS: "Apple"
// Android: "Google"
// Windows: ?
});
Returns the maximum amount of memory that the VM will attempt to use, in bytes.
DeviceInfo.getMaxMemory().then(maxMemory => {
// 402653183
});
Gets the device model.
iOS warning: The list with device names is maintained by the community and could lag new devices. It is recommended to use getDeviceId()
since it's more reliable and always up-to-date with new iOS devices. We do accept pull requests that add new iOS devices to the list with device names.
DeviceInfo.getModel().then(model => {
// iOS: ?
// Android: ?
// Windows: ?
});
Gets the device phone number.
DeviceInfo.getPhoneNumber().then(phoneNumber => {
// Android: null return: no permission, empty string: unprogrammed or empty SIM1, e.g. "+15555215558": normal return value
});
This can return
undefined
in certain cases and should not be relied on. SO entry on the subject.
Gets the power state of the device including the battery level, whether it is plugged in, and if the system is currently operating in low power mode. Displays a warning on iOS if battery monitoring not enabled, or if attempted on an emulator (where monitoring is not possible)
DeviceInfo.getPowerState().then(state => {
// {
// batteryLevel: 0.759999,
// batteryState: 'unplugged',
// lowPowerMode: false,
// }
});
The name of the overall product.
DeviceInfo.getProduct().then(product => {
// "walleye"
});
The developer preview revision of a prerelease SDK.
DeviceInfo.getPreviewSdkInt().then(previewSdkInt => {
// 0
});
Gets the application human readable version (same as getVersion() + '.' + getBuildCode())
DeviceInfo.getReadableVersion().then(readableVersion => {
// iOS: 1.0.1.32
// Android: 1.0.1.234
// Windows: ?
});
Gets the device serial number. Will be 'unknown' in almost all cases unless you have a privileged app and you know what you're doing.
DeviceInfo.getSerialNumber().then(serialNumber => {
// iOS: unknown
// Android: ? (maybe a serial number, if your app is privileged)
// Windows: unknown
});
The user-visible security patch level.
DeviceInfo.getSecurityPatch().then(securityPatch => {
// "2018-07-05"
});
Gets the device OS name.
DeviceInfo.getSystemName().then(systemName => {
// iOS: "iOS" on newer iOS devices "iPhone OS" on older devices, including older iPad's.
// Android: "Android"
// Windows: ?
});
Gets the device OS version.
DeviceInfo.getSystemVersion().then(systemVersion => {
// iOS: "11.0"
// Android: "7.1.1"
// Windows: ?
});
Gets build number of the operating system.
DeviceInfo.getBuildId().then(buildId => {
// iOS: "12A269"
// tvOS: not available
// Android: "13D15"
// Windows: not available
});
Comma-separated tags describing the build.
DeviceInfo.getTags().then(tags => {
// "release-keys, unsigned, debug",
});
The type of build.
DeviceInfo.getType().then(type => {
// "user", "eng"
});
Gets full disk storage size, in bytes.
DeviceInfo.getTotalDiskCapacity().then(capacity => {
// Android: 17179869184
// iOS: 17179869184
});
Gets the device total memory, in bytes.
DeviceInfo.getTotalMemory().then(totalMemory => {
// 1995018240
});
Gets the device unique ID.
On Android it is currently identical to getAndroidId()
in this module.
On iOS it uses the DeviceUID
uid identifier.
On Windows it uses Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation.id
.
DeviceInfo.getUniqueId().then(uniqueId => {
// iOS: "FCDBD8EF-62FC-4ECB-B2F5-92C9E79AC7F9"
// Android: "dd96dec43fb81c97"
// Windows: ?
});
- iOS: This is
IDFV
or a random string if IDFV is unavaliable. Once UID is generated it is stored in iOS Keychain and NSUserDefaults. So it would stay the same even if you delete the app or reset IDFV. You can carefully consider it a persistent, cross-install unique ID. It can be changed only in case someone manually override values in Keychain/NSUserDefaults or if Apple would change Keychain and NSUserDefaults implementations. Beware: The IDFV is calculated using your bundle identifier and thus will be different in app extensions.- android: Prior to Oreo, this id (ANDROID_ID) will always be the same once you set up your phone.
Gets the app memory usage, in bytes.
DeviceInfo.getUsedMemory().then(usedMemory => {
// 23452345
});
Gets the device User Agent.
DeviceInfo.getUserAgent().then(userAgent => {
// iOS: "Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143"
// tvOS: not available
// Android: ?
// Windows: ?
});
Gets the application version.
DeviceInfo.getVersion().then(version => {
// iOS: "1.0"
// Android: "1.0"
// Windows: ?
});
Tells if the device is in Airplane Mode.
DeviceInfo.isAirplaneMode().then(airplaneModeOn => {
// false
});
- This only works if the remote debugger is disabled.
Tells if the battery is currently charging.
DeviceInfo.isBatteryCharging().then(isCharging => {
// true or false
});
Tells if the application is running in an emulator.
DeviceInfo.isEmulator().then(isEmulator => {
// false
});
Tells if a PIN number or a fingerprint was set for the device.
DeviceInfo.isPinOrFingerprintSet().then(isPinOrFingerprintSet => {
if (!isPinOrFingerprintSet) {
// ...
}
});
Tells if the device is a tablet.
DeviceInfo.isTablet().then(isTablet => {
// true
});
Tells if the device is currently in landscape mode.
DeviceInfo.isLandscape().then(isLandscape => {
// true
});
Tells if the device has a notch.
DeviceInfo.hasNotch().then(hasNotch => {
// true
});
Returns the device's type as a string, which will be one of:
Handset
Tablet
Tv
unknown
DeviceInfo.getDeviceType().then(type => {
// 'Handset'
});
An ordered list of 32 bit ABIs supported by this device.
DeviceInfo.supported32BitAbis().then(abis => {
// ["armeabi-v7a", "armeabi"]
});
An ordered list of 64 bit ABIs supported by this device.
DeviceInfo.supported64BitAbis().then(abis => {
// ["arm64-v8a"]
});
Returns a list of supported processor architecture version
DeviceInfo.supportedAbis().then(abis => {
// [ "arm64 v8", "Intel x86-64h Haswell", "arm64-v8a", "armeabi-v7a", "armeabi" ]
});
Tells if the device has a specific system feature.
DeviceInfo.hasSystemFeature('amazon.hardware.fire_tv').then(hasFeature => {
// true or false
});
Returns a list of available system features on Android.
DeviceInfo.getSystemAvailableFeatures().then(features => {
// ["android.software.backup", "android.hardware.screen.landscape", "android.hardware.wifi", ...]
});
Tells if the device has location services turned off at the device-level (NOT related to app-specific permissions)
DeviceInfo.isLocationEnabled().then(enabled => {
// true or false
});
Returns an object of platform-specfic location providers/servcies, with boolean
value whether or not they are currently available.
NOTE: This function requires access to the Location permission on Android
DeviceInfo.getAvailableLocationProviders().then(providers => {
// {
// gps: true
// network: true
// passive: true
// }
});
DeviceInfo.getAvailableLocationProviders().then(providers => {
// {
// headingAvailable: false
// isRangingAvailable: false
// locationServicesEnabled: true
// significantLocationChangeMonitoringAvailable: true
// }
});
Currently iOS & Android only.
Fired when the battery level changes; sent no more frequently than once per minute.
import { NativeEventEmitter, NativeModules } from 'react-native'
const deviceInfoEmitter = new NativeEventEmitter(NativeModules.RNDeviceInfo)
deviceInfoEmitter.addListener('RNDeviceInfo_batteryLevelDidChange', level => {
// 0.759999
});
Fired when the battery drops is considered low
Platform | Percentage |
---|---|
iOS | 20 |
Android | 15 |
import { NativeEventEmitter, NativeModules } from 'react-native'
const deviceInfoEmitter = new NativeEventEmitter(NativeModules.RNDeviceInfo)
deviceInfoEmitter.addListener('RNDeviceInfo_batteryLevelIsLow', level => {
// 0.19
});
Fired when the battery state changes, for example when the device enters charging mode or is unplugged.
import { NativeEventEmitter, NativeModules } from 'react-native'
const deviceInfoEmitter = new NativeEventEmitter(NativeModules.RNDeviceInfo)
deviceInfoEmitter.addListener('RNDeviceInfo_powerStateDidChange', { batteryState } => {
// 'charging'
});
When installing or using react-native-device-info
, you may encounter the following problems:
[android] - Unable to merge dex / Multiple dex files / Problems with `com.google.android.gms`
react-native-device-info
uses com.google.android.gms:play-services-gcm
to provide [getInstance()][#getinstance].
This can lead to conflicts when building the Android application.
If you're using a different version of com.google.android.gms:play-services-gcm
in your app, you can define the
googlePlayServicesVersion
gradle variable in your build.gradle
file to tell react-native-device-info
what version
it should require. See the example project included here for a sample.
If you're using a different library that conflicts with com.google.android.gms:play-services-gcm
, and you are certain you know what you are doing such that you will avoid version conflicts, you can simply
ignore this dependency in your gradle file:
compile(project(':react-native-device-info')) {
exclude group: 'com.google.android.gms'
}
[ios] - ld: library not found for -lRNDeviceInfo-tvOS
Seems to be a bug caused by react-native link
. You can manually delete libRNDeviceInfo-tvOS.a
in Xcode -> [Your iOS build target] -> Build Phrases -> Link Binary with Libraries
.
[ios] - [NetworkInfo] Descriptors query returned error: Error Domain=NSCocoaErrorDomain Code=4099 “The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.”
This is a system level log that may be turned off by executing:
xcrun simctl spawn booted log config --mode "level:off" --subsystem com.apple.CoreTelephony
.
To undo the command, you can execute:
xcrun simctl spawn booted log config --mode "level:info" --subsystem com.apple.CoreTelephony
[ios] - Multiple versions of React when using CocoaPods "tries to require 'react-native' but there are several files providing this module"
RN<=59 You may need to adjust your Podfile like this if you use Cocoapods and have undefined symbols or duplicate React definitions
target 'yourTargetName' do
# See http://facebook.github.io/react-native/docs/integration-with-existing-apps.html#configuring-cocoapods-dependencies
pod 'React', :path => '../node_modules/react-native', :subspecs => [
'Core',
'CxxBridge', # Include this for RN >= 0.47
'DevSupport', # Include this to enable In-App Devmenu if RN >= 0.43
'RCTText',
'RCTNetwork',
'RCTWebSocket', # Needed for debugging
'RCTAnimation', # Needed for FlatList and animations running on native UI thread
# Add any other subspecs you want to use in your project
]
# Explicitly include Yoga if you are using RN >= 0.42.0
pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'
# Third party deps podspec link - you may have multiple pods here, just an example
pod 'RNDeviceInfo', path: '../node_modules/react-native-device-info'
end
# if you see errors about React duplicate definitions, this fixes it. The same works for yoga.
post_install do |installer|
installer.pods_project.targets.each do |target|
if target.name == "React"
target.remove_from_project
end
end
end
[tests] - Cannot run my test suite when using this library
react-native-device-info
contains native code, and needs to be mocked. Jest Snapshot support may work though.
Here's how to do it with jest for example:
// in your package.json:
"jest": {
"setupFiles": [
"./testenv.js"
],
// testenv.js:
jest.mock('react-native-device-info', () => {
return {
getModel: jest.fn(),
};
});
[warnings] - I get too many warnings (battery state, etc)
Some of the APIs (like getBatteryState) will throw warnings in certain conditions like on tvOS or the iOS emulator. This won't be visible in production but even in development it may be irritating. It is useful to have the warnings because these devices return no state, and that can be surprising, leading to github support issues. The warnings is intended to educate you as a developer. If the warnings are troublesome you may try this in your code to suppress them:
import { YellowBox } from 'react-native';
YellowBox.ignoreWarnings(['Battery state']);
See the CHANGELOG.md.
Please see the contributing guide
.
As a courtesy to developers, this library was made compatible in v0.21.6 with react-native-dom and react-native-web by providing an empty polyfill in order to avoid breaking builds.
Only getUserAgent() will return a correct value. All other API methods will return an "empty" value of its documented return type: 0
for numbers, ''
for strings, false
for booleans.